import { reqCartList,reqDeleteCartById,reqUpdateCheckedByid } from "@/api";
const state = {
    cartList:[]
};
const mutations = {
    GETCARTLIST(state,cartList){
        state.cartList = cartList;
    }
};
const actions = {
    //获取购物车列表数据
    async getCartList({commit}){
        let result = await reqCartList();
        if(result.code==200){
            commit("GETCARTLIST",result.data);
        }
    },
    //删除购物车某一个产品
    async deleteCartListBySkuId({commit},skuId){
        let result = await reqDeleteCartById(skuId);
        if(result.code==200){
            return 'ok';
        }else{
            return Promise.reject(new Error('faile'));
        }
    },
    //修改购物车某一个产品的选中状态
    async updateCheckedById({commit},{skuId,isChecked}){
        let result = await reqUpdateCheckedByid(skuId,isChecked);
        if(result.code==200){
            return 'ok';
        }else{
            return Promise.reject(new Error('faile'));
        }
    },
    //删除全部勾选的产品
    deleteAllCheckedCart({dispatch,getters}){
        //context：小仓库，commit[提交mutations修改state] getters【计算属性】 dispatch【派发action】state【当前仓库数据】
        //获取购物车中全部的产品（是一个数组）
        let PromiseAll = [];
        getters.cartList.cartInfoList.forEach(item=>{
          let promise = item.isChecked==1?dispatch('deleteCartListBySkuId',item.skuId):'';
          //将每一次返回的Promise添加到数组当中
          PromiseAll.push(promise);
        });
        //只要全部的p1|p2...都成功，返回结果即为成功
        //如果有一个失败，返回即为失败结果
        return Promise.all(PromiseAll);
    },
    //修改全部产品的状态
    updateAllCartIsChecked({dispatch,state},isChecked){
        //数组
        let promiseAll = [];
        state.cartList[0].cartInfoList.forEach((item) =>{
            let promise = dispatch("updateCheckedById",{
                skuId:item.skuId,
                isChecked,
            });
            promiseAll.push(promise)
        });
        //最终返回结果
        return Promise.all(promiseAll);
    }
};
const getters = {
    cartList(state){
        return state.cartList[0]||{}
    }
};
export default{
    state,
    mutations,
    actions,
    getters

}